This was a slate floor in a wet room in a house in Ealing W5. The black semi-riven slate had originally been sealed by the tiler on installation but had never looked how the customer wanted it to.
Cleaning Semi-Riven Slate Tiles
To strip off what was left of the old sealer we used Tile Doctor Remove and Go leaving it to soak into the floor for a while before working it in with a rotary machine fitted with a black buffing pad. The solution was then removed using a wet and dry Vacuum and the floor washed down with clean water. This work removed any remaining sealer but we still needed to give the floor a deep clean and so the whole process was repeated this time using Tile Doctor Pro-Clean which is an effective heavy duty alkaline cleaning product ideal for cleaning up natural stone floors and grout. After we gave the floor a thorough rinse to remove any cleaning products and neutralise the floor ready for sealing, last step was to remove the water from the floor using the wet vacuum again and leave it to dry out overnight.
Sealing Semi-Riven Slate Tiles
The next way came back and sealed the floor using two coats of Tile Doctor Colour Grow as you can see from the photographs did an excellent job lifting the colour out of the tile.